java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AbstractInterpretationCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/ddlm2013_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 06:43:09,392 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 06:43:09,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 06:43:09,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 06:43:09,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 06:43:09,408 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 06:43:09,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 06:43:09,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 06:43:09,413 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 06:43:09,414 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 06:43:09,415 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 06:43:09,415 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 06:43:09,416 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 06:43:09,417 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 06:43:09,419 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 06:43:09,419 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 06:43:09,420 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 06:43:09,422 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 06:43:09,425 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 06:43:09,426 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 06:43:09,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 06:43:09,429 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 06:43:09,432 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 06:43:09,432 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 06:43:09,432 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 06:43:09,433 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 06:43:09,434 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 06:43:09,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 06:43:09,436 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 06:43:09,437 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 06:43:09,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 06:43:09,440 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 06:43:09,441 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 06:43:09,441 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 06:43:09,442 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 06:43:09,446 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 06:43:09,446 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 06:43:09,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 06:43:09,481 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 06:43:09,482 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 06:43:09,482 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 06:43:09,482 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 06:43:09,483 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 06:43:09,483 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 06:43:09,483 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 06:43:09,483 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 06:43:09,483 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 06:43:09,484 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 06:43:09,485 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 06:43:09,485 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 06:43:09,485 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 06:43:09,486 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 06:43:09,486 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 06:43:09,486 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 06:43:09,486 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 06:43:09,486 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 06:43:09,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 06:43:09,487 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 06:43:09,487 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 06:43:09,487 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 06:43:09,489 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 06:43:09,489 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 06:43:09,489 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 06:43:09,489 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 06:43:09,489 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 06:43:09,490 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 06:43:09,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 06:43:09,490 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 06:43:09,490 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 06:43:09,491 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 06:43:09,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 06:43:09,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 06:43:09,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 06:43:09,557 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 06:43:09,557 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 06:43:09,558 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/ddlm2013_true-unreach-call.i [2018-09-15 06:43:09,910 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5efa63b/603397e516414a4984e14515b66a8fe8/FLAGd9d212fc8 [2018-09-15 06:43:10,072 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 06:43:10,073 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/ddlm2013_true-unreach-call.i [2018-09-15 06:43:10,080 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5efa63b/603397e516414a4984e14515b66a8fe8/FLAGd9d212fc8 [2018-09-15 06:43:10,099 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5efa63b/603397e516414a4984e14515b66a8fe8 [2018-09-15 06:43:10,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 06:43:10,118 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 06:43:10,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 06:43:10,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 06:43:10,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 06:43:10,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6beab7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10, skipping insertion in model container [2018-09-15 06:43:10,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,145 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 06:43:10,350 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 06:43:10,368 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 06:43:10,375 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 06:43:10,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10 WrapperNode [2018-09-15 06:43:10,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 06:43:10,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 06:43:10,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 06:43:10,390 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 06:43:10,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 06:43:10,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 06:43:10,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 06:43:10,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 06:43:10,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... [2018-09-15 06:43:10,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 06:43:10,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 06:43:10,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 06:43:10,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 06:43:10,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:43:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 06:43:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 06:43:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 06:43:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 06:43:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 06:43:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 06:43:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 06:43:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 06:43:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 06:43:11,035 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 06:43:11,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 06:43:11 BoogieIcfgContainer [2018-09-15 06:43:11,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 06:43:11,036 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-09-15 06:43:11,037 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-09-15 06:43:11,037 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-09-15 06:43:11,038 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 06:43:11" (1/1) ... [2018-09-15 06:43:11,077 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 06:43:11,235 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 06:43:12,235 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 06:43:12,262 INFO L272 AbstractInterpreter]: Visited 28 different actions 214 times. Merged at 12 different actions 98 times. Widened at 1 different actions 5 times. Found 29 fixpoints after 5 different actions. Largest state had 10 variables. [2018-09-15 06:43:12,264 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-09-15 06:43:12,266 INFO L168 Benchmark]: Toolchain (without parser) took 2151.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -605.8 MB). Peak memory consumption was 119.3 MB. Max. memory is 7.1 GB. [2018-09-15 06:43:12,269 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 06:43:12,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 06:43:12,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.67 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 06:43:12,271 INFO L168 Benchmark]: Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 06:43:12,272 INFO L168 Benchmark]: RCFGBuilder took 598.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-15 06:43:12,273 INFO L168 Benchmark]: Abstract Interpretation took 1228.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 156.8 MB). Peak memory consumption was 156.8 MB. Max. memory is 7.1 GB. [2018-09-15 06:43:12,279 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 269.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.67 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 598.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1228.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 156.8 MB). Peak memory consumption was 156.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L11] unsigned int i,j,a,b; [L12] int flag = __VERIFIER_nondet_int(); [L13] a = 0 [L14] b = 0 [L15] j = 1 [L16] COND FALSE !(\read(flag)) [L19] i = 1 [L21] COND TRUE __VERIFIER_nondet_int() [L22] a++ [L22] a++ [L23] b += (j - i) [L24] i += 2 [L25] COND TRUE i%2 == 0 [L26] j += 2 [L21] COND FALSE !(__VERIFIER_nondet_int()) [L31] COND TRUE \read(flag) [L32] CALL __VERIFIER_assert(a == b) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ddlm2013_true-unreach-call.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AbstractInterpretationCInline.xml/Csv-Benchmark-0-2018-09-15_06-43-12-292.csv Received shutdown request...